Sherlock Headcannons

Duo

In their duo, Sherlock is the brain and John is heart, yes?

Now notice;

-Sherlock's problems are in his heart (sociopath, not caring)

-John's problems are in his head (psychosomatic limp, post traumatic stress disorder)

In the time they were together, they sort of 'fixed' each other. Sherlock made John's limp go away and John helped coax out Sherlock's more human side.

These two are just lovely little puzzle pieces. Platonic or not, they are soulmates.